JP2010506625A - Lifetime measuring system and method of biometric sensors - Google Patents

Lifetime measuring system and method of biometric sensors Download PDF

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JP2010506625A
JP2010506625A JP2009532585A JP2009532585A JP2010506625A JP 2010506625 A JP2010506625 A JP 2010506625A JP 2009532585 A JP2009532585 A JP 2009532585A JP 2009532585 A JP2009532585 A JP 2009532585A JP 2010506625 A JP2010506625 A JP 2010506625A
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アル−アリ、アマー
ウェーバー、ウォルター、エム.
ムチャール、ライアン、ティモシー
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マシモ コーポレイション
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    • AHUMAN NECESSITIES
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1495Calibrating or testing of in-vivo probes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/0002Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A61B5/14552Details of sensors specially adapted therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813Specially adapted to be attached to a specific body part
    • A61B5/6825Hand
    • A61B5/6826Finger
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683Means for maintaining contact with the body
    • A61B5/6838Clamps or clips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02Operational features
    • A61B2560/0223Operational features of calibration, e.g. protocols for calibrating sensors
    • A61B2560/0238Means for recording calibration data
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02Operational features
    • A61B2560/0266Operational features for monitoring or limiting apparatus function
    • AHUMAN NECESSITIES
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    • A61B2560/02Operational features
    • A61B2560/0266Operational features for monitoring or limiting apparatus function
    • A61B2560/0276Determining malfunction
    • AHUMAN NECESSITIES
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    • A61B2560/02Operational features
    • A61B2560/0266Operational features for monitoring or limiting apparatus function
    • A61B2560/028Arrangements to prevent overuse, e.g. by counting the number of uses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04Constructional details of apparatus
    • A61B2560/0443Modular apparatus
    • A61B2560/045Modular apparatus with a separable interface unit, e.g. for communication
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04Constructional details of apparatus
    • A61B2560/0475Special features of memory means, e.g. removable memory cards
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0233Special features of optical sensors or probes classified in A61B5/00
    • A61B2562/0238Optical sensor arrangements for performing transmission measurements on body tissue
    • AHUMAN NECESSITIES
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    • A61B2562/08Sensors provided with means for identification, e.g. barcodes or memory chips
    • A61B2562/085Sensors provided with means for identification, e.g. barcodes or memory chips combined with means for recording calibration data

Abstract

本開示は、センサ使用情報の指標及びセンサ使用情報の指標からセンサの耐用寿命を判定する数式又は数式指標を記憶部に保存するよう構成されたセンサを含む。 The present disclosure includes a sensor configured to store the indication of the indicator and sensor usage information of the sensor using the information formulas or equations index for judging the service life of the sensor in the storage unit. センサに接続された測定器によりセンサ使用を監視し、センサ記憶部に使用指標を保存する。 The sensor used was monitored by measuring device connected to the sensor, to store the used indicator in the sensor storage unit. 測定器及び/又はセンサは、使用指標及び数式からセンサの耐用寿命を(使用)算出する。 Meter and / or sensors, the service life of the use indices and equation sensor (used) is calculated. センサの耐用寿命が尽きると、センサ交換を促す表示が出される。 When the useful life of the sensor is exhausted, the display is issued to prompt the sensor replacement.

Description

本発明は、「寿命表示を有する遮光型光プローブ及び方法」と題され、2001年3月2日に出願された米国特許第6388240号及び「パルス酸素濃度センサの耐用期間終了表示システム」と題され、2000年2月10日に出願された米国特許第6515273号、これら特許の継続出願、分割出願、一部継続出願その他に関し、これら文献の開示内容全ては参照により本明細書に組み込まれる。 The present invention, entitled "light-shielding type optical probe and method with life display", entitled, filed March 2, 2001 U.S. Pat. No. 6,388,240 No. and "pulse oximetry sensor life period end system" is, 2000 February 10 U.S. Pat. No. 6,515,273, filed, continuation application of patent, a divisional application relates continuation-all other disclosures of these references are incorporated herein by reference.

本発明は血中酸素量計測用センサに関し、特に、パルス酸素濃度センサの寿命測定装置及び方法に関する。 The present invention relates to oxygen sensors for measurement in the blood, in particular, relates lifetime measuring apparatus and method of pulse oximetry sensor.

血中酸素低下の早期検知は、多様な医療用途において非常に重要である。 Early detection of blood oxygen reduction is of great importance in a variety of medical applications. 例えば、救命処置及び手術を受けている患者への酸素供給が不足すれば、ほんの数分のうちに脳障害や死につながる可能性もある。 For example, if insufficient oxygen supply to the patient undergoing lifesaving treatment and surgery, it can also lead to brain damage or death within just a few minutes. このような危険があることから、医療機器各社は血中酸素飽和度を計測する非侵襲的方法としてパルス酸素濃度計を開発した。 Since there is such a danger, the medical device companies have developed pulse oximetry as a noninvasive method of measuring the blood oxygen saturation. パルス酸素濃度計は患者に取り付けたセンサからの信号を解読し患者の血中酸素飽和度を判定するものである。 Pulse oximetry is to determine the blood oxygen saturation of a patient decodes the signal from the sensor attached to the patient.

従来のパルス酸素濃度センサは、赤色光エミッタ、赤外光エミッタ、フォトダイオード検出器を備えている。 Conventional pulse oximetry sensor, the red light emitter, infrared light emitters, and a photodiode detector. センサは通常、患者の指や耳たぶ又は足に取り付けられる。 Sensors are usually attached to the patient's finger or ear lobe or foot. 指に取り付けるセンサは、エミッタが指の片側から光を投射し、光が指の外部組織を通過し内部に含まれる血管や毛細血管に届くよう構成されている。 Sensors attached to the finger, the emitter light is projected from one side of the finger, the light is configured to reach the blood vessels and capillaries contained inside through the outer tissue of the finger. フォトダイオードは指の反対側に配され、指の外部組織から出射する光を検知する。 Photodiodes arranged on the opposite side of the finger, detecting the light emitted from the finger external tissue. フォトダイオードは出射光に基づく信号を生成しパルス酸素濃度計に対してこの信号を伝える。 Photodiode convey this signal to the pulse oximeter to generate a signal based on the emitted light. パルス酸素濃度計はセンサから出射された2つの波長光(赤色光及び赤外光)の動脈血による吸収度の違いを計算し血中酸素濃度を判定する。 Pulse oximeter determines the calculated blood oxygen concentration difference in absorbance due to arterial blood of the two-wavelength light emitted from the sensor (the red light and infrared light).

上記従来のセンサは通常、定期交換が可能なように酸素濃度計から取り外すことができる。 The conventional sensor can be removed normally from the oximeter to allow periodic replacement. 定期交換は様々な理由で有益である。 Periodic replacement is beneficial for a variety of reasons. 例えば、センサが汚れてセンサ感度が落ちたり、患者間の感染につながる恐れがある。 For example, fallen sensor sensitivity sensor dirty, can lead to infection between patients. また、センサ内の電子回路が損傷してセンサ故障につながったりセンサ結果が不正確となる恐れがある。 Moreover, the electronic circuit is damaged or sensor results lead to sensor failure in the sensor may become inaccurate. さらに、粘着板などのセンサ固定機構の機能低下により、測定部位近辺へのセンサ位置決めが不適切となりデータが不正確となる恐れがある。 Furthermore, reduced function of the sensor fixing mechanism such as adhesive plate, becomes inadequate data sensor positioned to near the measurement site is likely to be inaccurate. 従ってパルス酸素濃度計システムを無菌、高感度、精密に保つためにはセンサの定期交換が重要である。 Thus sterile pulse oximetry system, high sensitivity, in order to keep precisely the periodic replacement of the sensor is important.

しかしながら従来のパルス酸素濃度センサは一般に、汚染、損傷、又は過剰使用されたセンサを適時に交換するかどうかは操作者次第である。 However the conventional pulse oximetry sensor is generally contamination, damage, or excessive whether that was used sensor to replace in time is up operator. しかし、操作者のミスや見落としの可能性だけでなく、コスト削減その他の目的で故意に不適切使用される可能性もあり、この方法には問題がある。 However, not only the possibility of mistakes and omissions of the operator, there is also likely to be incorrect use deliberately in cost savings and other objects, this method has a problem.

従って本発明の一態様は、パルス酸素濃度センサの安全な耐用寿命を測定する、安価で精密なセンサ寿命測定システムを提供するものである。 Thus one aspect of the present invention measures the safe service life of the pulse oximetry sensor, there is provided an inexpensive and accurate sensor lifetime measurement system. 一実施形態において、センサには例えばEPROMやEEPROMなどの記憶装置が設けられている。 In one embodiment, the storage device, such as for example EPROM or EEPROM is provided on the sensor. 上記記憶装置上には所定間隔及び/又は所定の出来事に応じて情報が書き込まれる。 The on said storage device information in accordance with a predetermined interval and / or a predetermined event is written. センサ使用量が所定レベルに達すると、ユーザに対してセンサ交換信号が表示される。 When the sensor usage reaches a predetermined level, the sensor exchange signal is displayed to the user.

一実施形態において、センサ特性によっては、センサがセンサの予測寿命に関する情報を保存する。 In one embodiment, depending on the sensor characteristics, the sensor stores information about expected life of the sensor. 一実施形態において、上記予測寿命情報とはセンサの耐用寿命算出に用いる1又は複数の関数である。 In one embodiment, the above expected life information is one or more functions to be used for the service life calculation of the sensor. 一実施形態において、上記情報とはセンサ使用の指標である。 In one embodiment, the above information is indicative of sensor used. 一実施形態において、上記1又は複数の関数はセンサ使用の指標とともにセンサ上に保存される。 In one embodiment, the one or more functions is stored on the sensor with an indication of sensor used. 一実施形態において、上記1又は複数の関数はセンサの耐用寿命を判定するためにセンサ使用の指標と共に用いられる。 In one embodiment, the one or more functions are used with the indication sensor used to determine the useful life of the sensor.

一実施形態において、上記1又は複数の関数とは、センサ使用を観測及び/又は使用済みセンサを検査することにより得られる経験上のデータに基づく所定の1又は複数の関数である。 In one embodiment, the said one or more functions, a predetermined one or more functions based on data on the experience gained by examining the observed and / or the used sensor sensors used. 一実施形態において、上記経験上のデータは患者に対するセンサの通常使用中に実験によって得られるデータである。 In one embodiment, the data on the experience is the data obtained by experiments during normal use of the sensor to the patient. 一実施形態において、上記経験上のデータは患者を用いることなく実験によって得られるデータである。 In one embodiment, the data on the experience is the data obtained by experiments without the use of patient. 一実施形態において、上記1又は複数の関数とは理論上のデータに基づく関数である。 In one embodiment, the above one or more functions is a function based on the data of the theoretical. 一実施形態において、上記1又は複数の関数とはセンサの各部品それぞれの寿命に基づく関数である。 In one embodiment, the above one or more functions is a function based on each part each sensor life.

一実施形態においては、患者測定器がセンサと協働でセンサの耐用寿命を判定する。 In one embodiment, it determines the useful life of the sensor patients meter sensor and cooperate. 一実施形態において、上記測定器はセンサ使用に関する情報を追跡しセンサ使用に関する情報の指標を保存する。 In one embodiment, the instrument stores an indication of information about the track and the sensor using the information about the occupancy sensor. 一実施形態において、上記測定器は上記関数及び/又は既に保存されている使用指標を含む、センサ上に保存された情報を用い、センサの耐用寿命を算出する。 In one embodiment, the instrument includes a use indicator that is stored the function and / or already used the information stored on the sensor, to calculate the service life of the sensor. 一実施形態において、上記測定器は既にセンサに保存されている使用指標を更新する。 In one embodiment, the meter updates the usage indicator which has already been stored in the sensor. 一実施形態において、上記測定器はセンサが寿命切れ状態であることを使用者に表示する。 In one embodiment, the instrument sensor is displayed to the user that a life out condition.

一実施形態においては、センサが上記関数及び/又は使用指標を用い、センサの耐用寿命を算出する。 In one embodiment, the sensor using the function and / or use indicators, to calculate the service life of the sensor. 一実施形態において、センサは測定器から得られる情報に基づいてセンサの耐用寿命を算出する。 In one embodiment, the sensor calculates the useful life of the sensor on the basis of information obtained from the measurement instrument. 一実施形態において、測定器は上記関数及び/又はある特定のセンサに関するセンサ使用情報を保存する。 In one embodiment, the instrument stores the sensor using information on the function and / or a particular sensor. 一実施形態においては、一連の又は複数の関数が測定器に保存され、センサはいずれの関数がセンサの耐用寿命算出に用いられるかを示す指標を保存する。 In one embodiment, a series or plurality of functions stored in the meter, the sensor stores the index indicating which function is used in the service life calculation of the sensor. 一実施形態においては、記憶容量を節約するため、使用情報の指標はセンサ上に保存される。 In one embodiment, to save storage capacity, an indication of use information is stored on the sensor. 一実施形態において、センサ記憶部は読取専用部及び読取/書込部の双方を含む。 In one embodiment, the sensor storage unit includes both exclusive portion and read / write unit read. 一実施形態において読取専用部は、関数やその他、更新期間・使用期限・関数インデックス・寿命切れまでの残存パーセントなどの、読取専用情報を保存する。 Dedicated unit reading in one embodiment, functions and other such residual percent to update period, expiration date, a function index life out, stores the read-only information. 一実施形態において、読取/書込部はセンサ使用に従って定期的に変化する使用情報を保存する。 In one embodiment, the read / write unit stores the use information to periodically vary according to use sensors.

一実施形態において上記使用情報は、センサと測定器間の接続及び/又は分離回数、センサの校正完了回数、センサの測定器への接続時間合計、患者の生命維持パラメータ処理にセンサが使用された時間合計、センサ年数、LEDへの累積又は平均印加電流、センサへの累積又は平均供給電流、センサ使用中の累積又は平均温度、センサの寿命切れ状態又は残存寿命の指標、クリップの押圧回数、クリップの患者への取付け回数、センサを使用した患者の人数、センサの清掃及び/又は消毒回数及び間隔時間、特定のセンサが接続された測定器の台数、センサが修理された場合その回数、センサの消毒回数、使用間隔、及び、本明細書中の開示から通常の当業者が理解するであろう、センサ寿命判定に有用なその他の情報、のうち1又は複数 The usage information in one embodiment, the connection and / or separation times between the sensor and the measuring instrument, the calibration number of completions of the sensor, the total connection time to the instrument of the sensor, the sensor life support parameter processing of the patient were used time total sensor life, the cumulative or average current applied to the LED, cumulative or average current supplied to the sensor, the cumulative or average temperature during use sensors, indicators of life out condition or the remaining life of the sensor, pressing the number of the clip, the clip mounting number of the patient, the number of patients using the sensor, cleaning and / or disinfection times and interval time of the sensor, the number of measuring instruments which particular sensor is connected, the number of times when the sensor has been repaired, sensor disinfection times, using intervals, and would one of ordinary skill in the art will understand from the disclosure herein, other information useful to the sensor life determination, one or more of 含む。 Including.

一実施形態は、再利用可能な非侵襲的生体センサである。 One embodiment is a non-invasive biometric sensor reusable. センサは少なくとも2つの波長の光を組織を通して照射する第1及び第2のエミッタと、組織を通した光を感知し、感知光を表す信号を生成する検知器と、センサ使用情報の指標及びセンサの耐用寿命判定に用いられる関数の指標を保存する記憶装置と、少なくとも上記信号と上記記憶装置に保存された情報とを患者測定器に対し送受信する通信ポートとを備える。 The sensor first and second emitter for irradiating through the tissue with light of at least two wavelengths, sensing the light through the tissue, and detector to generate a signal representative of the sensed light, indicator and sensor of the sensor using information comprising a storage device that stores an indication of the function used for service life determination, and a communication port for sending and receiving the patient meter the information stored in at least the signal and the storage device. 一実施形態において、上記記憶装置は読取専用部と読取/書込部とを有する。 In one embodiment, the storage device has a a read only portion read / write unit. 一実施形態において、上記関数の指標は記憶装置の読取専用部に保存され、センサ使用情報の指標は読取/書込部に保存される。 In one embodiment, the indication of the function is stored in a dedicated portion reading of the storage device, an indication of sensor usage information is stored in the read / write unit. 一実施形態において、上記記憶装置は複数の記憶装置から成る。 In one embodiment, the storage device comprises a plurality of storage devices. 一実施形態において、上記センサ使用情報の指標とは、センサ年数、センサ使用時間、センサへの供給電流、センサ温度、センサ押圧回数、センサ校正回数、センサ起動回数のうち1又は複数の指標である。 In one embodiment, the indication of the sensor usage information, sensor life, the sensor operating time, the supply current to the sensor, the sensor temperature, sensor pressing times, sensor calibration number is 1 or more indicators of the sensors start count . 一実施形態において、上記測定器は使用情報を追跡し、使用情報の指標をセンサに送信し、この指標が記憶装置に保存される。 In one embodiment, the instrument tracks the usage information, and sends an indication of usage information to the sensor, the index is stored in the storage device.

一実施形態は生体センサの耐用寿命判定方法であり、本方法は、記憶装置を備えた生体センサを用いて生体情報を取得する工程と、センサの使用を監視する工程と、記憶装置にセンサの使用を表す指標を保存する工程と、数学関数及び上記使用指標を用いて、センサの耐用寿命がいつ尽きたかを判定する工程を含む。 One embodiment is a service life judgment method of biometric sensor, the method comprises the step of acquiring the biometric information using the biometric sensor with a memory device, comprising the steps of monitoring the use of the sensor, the storage device of the sensor a step of storing the index representing the use, by using a mathematical function and the use indicators comprises determining whether the service life of the sensor is always exhausted. 一実施形態において、センサの使用指標は、センサ年数、センサ使用時間、センサへの供給電流、センサ温度、センサ押圧回数、センサ校正回数、センサ起動回数のうち1又は複数の指標を含む。 In one embodiment, the indicator used in sensors include sensor life, the sensor operating time, the supply current to the sensor, the sensor temperature, sensor pressing times, sensor calibration number, one or more indicators of the sensors start count. 一実施形態において、上記センサの使用を監視する工程は患者測定器が行う。 In one embodiment, the step of monitoring the use of the sensor is performed by the patient meter. 一実施形態において、上記センサの使用を監視する工程は上記センサが行う。 In one embodiment, the step of monitoring the use of the sensor is the sensor does. 一実施形態において、上記数学関数はセンサ記憶部に保存されている。 In one embodiment, the mathematical function is stored in the sensor memory unit. 一実施形態において、上記数学関数は患者測定器の記憶部に保存されている。 In one embodiment, the mathematical function is stored in the storage unit of the patient meter. 一実施形態においては、上記数学関数の指標がセンサ記憶部に保存されている。 In one embodiment, the indication of the mathematical functions are stored in the sensor memory unit. 一実施形態において、上記数学関数は使用データから取得される。 In one embodiment, the mathematical function is obtained from the usage data. 一実施形態において、上記使用データは使用済みセンサから得られる。 In one embodiment, the usage data is obtained from used sensors. 一実施形態において、上記使用済みセンサとは患者に対して使用されたセンサである。 In one embodiment, the above used sensor is a sensor that is used for a patient. 一実施形態において、上記生体センサは血中酸素センサ、血圧センサ、心電図センサのうち1又は複数である。 In one embodiment, the biological sensor is one or more of blood oxygen sensor, blood pressure sensor, an electrocardiogram sensor.

一実施形態は、センサの少なくとも一部を再利用する方法である。 One embodiment is a method for recycling at least a portion of the sensor. 本方法は、生体センサの記憶装置にアクセスする工程と、記憶装置上のセンサ使用情報を取り出す工程と、取り出したセンサ使用情報を用いてセンサの少なくとも一部が再利用可能かどうかを判定する工程とを含む。 The method includes accessing a storage device of a biological sensor, a step of taking out the sensor using information on the storage device, determining if at least a portion of the sensor is reusable with sensor using information extracted including the door. 一実施形態において本方法はさらに、センサの少なくとも一部を再利用する工程を含む。 The method in one embodiment further includes the step of recycling at least a portion of the sensor. 一実施形態において、上記再利用工程は、センサの少なくとも一部を含む修復済みセンサを形成する工程を含む。 In one embodiment, the recycling process includes the step of forming the repaired sensor comprising at least a portion of the sensor. 一実施形態において本方法はさらに、センサの使用度合を判定するために使用情報を分析する工程を含む。 The method in one embodiment further comprises the step of analyzing the usage information to determine the use degree of the sensor. 一実施形態において本方法は、修復済みセンサ上に再利用情報を保存する工程を含む。 The method in one embodiment includes a step of storing the re-use information on the repaired sensor.

一実施形態は、生体センサの交換時期表示方法である。 One embodiment is a replacement time display method of a biological sensor. 本方法は、発光素子から光を射出する工程と、発光素子から出射して組織により減衰された後の光を検知する工程と、センサ記憶モジュールに情報を保存する工程と、センサ記憶モジュールが残量ゼロになる時点を判定する工程と、センサ記憶モジュールが残量ゼロであると判定されたときセンサを交換する必要があることを表示する工程とを含む。 The method includes emitting light from the light emitting element, a step of detecting the light after being attenuated by the tissue emitted from the light emitting element, a step of storing the information in the sensor memory module, the sensor memory module remaining comprising a step of determining the time to be the amount zero, and a step of displaying the need to replace the sensor when the sensor memory module is determined to be remaining zero. 一実施形態において、本方法は所定の時間間隔で情報を保存する工程を含む。 In one embodiment, the method includes storing information at predetermined time intervals. 一実施形態において、上記情報は使用情報を含む。 In one embodiment, the information includes a usage information.

生体計測システムの一実施形態を示す図である。 Is a diagram illustrating an embodiment of a biometric system. センサ部の一実施形態を示す図である。 Is a diagram illustrating an embodiment of a sensor unit. センサ部の別の実施形態を示す図である。 It is a diagram showing another embodiment of a sensor unit. センサ部の別の実施形態を示す図である。 It is a diagram showing another embodiment of a sensor unit. 測定システムの一実施例を示すブロック図である。 Is a block diagram showing an embodiment of a measurement system. 一実施形態におけるセンサ記憶部の内容を示すブロック図である。 Is a block diagram showing the contents of a sensor memory unit in one embodiment. センサ寿命測定システムの一実施形態を示すフローチャートである。 Is a flowchart illustrating an embodiment of a sensor lifetime measurement system. センサ寿命測定システムの別の実施形態を示すフローチャートである。 It is a flow chart illustrating another embodiment of a sensor lifetime measurement system. センサ寿命測定システムの別の実施形態を示すフローチャートである。 It is a flow chart illustrating another embodiment of a sensor lifetime measurement system. センサ寿命測定システムの一実施形態を示すフローチャートである。 Is a flowchart illustrating an embodiment of a sensor lifetime measurement system.

図1は、測定器101及びセンサ部101を備えた生体計測システム100の一実施形態を示す。 Figure 1 illustrates one embodiment of a biometric system 100 with measurement device 101 and the sensor unit 101. 生体計測システム100は患者などの人体の測定を可能にする。 Biometric system 100 enables the measurement of the human body such as a patient. 特に、多波長センサ部101により、血液成分や、酸素飽和度・一酸化炭素ヘモグロビン濃度(HbCO)・Metヘモグロビン濃度(HBMet)・脈拍など、関連のパラメータを計測することができる。 In particular, the multi-wavelength sensor 101, and blood components, oxygen saturation, carboxyhemoglobin concentration (HbCO), Met hemoglobin concentration (HbMet), pulse rate, etc., can be measured related parameters.

一実施形態において、センサ部101は測定器センサポート103に挿し込まれるよう構成されている。 In one embodiment, the sensor unit 101 is configured to be inserted into the instrument sensor port 103. 測定器キー105により、例えば操作モードやアラームなどの各種操作を行う。 The measuring device key 105, for example, performs various operations such as an operation mode or alarm. 表示部107は、例えば酸素飽和度、脈拍、HbCO、HbMetなどのパラメータの計測値を表示する。 Display unit 107 displays such as oxygen saturation, pulse rate, HbCO, a measurement of parameters such HbMet.

図2Aは組織部位に取り付けられるセンサ203と、センサケーブル205と、測定器コネクタ201とを備える多波長センサ部201を示す。 Figure 2A illustrates a sensor 203 attached to the tissue site, the sensor cable 205, a multiple wavelength sensor 201 and a meter connector 201. 一実施形態において、センサ203は、指先に取り外し可能に取り付けられ指先に光を透過させる再利用可能なフィンガークリップに内蔵されている。 In one embodiment, the sensor 203 is built into the finger clip reusable for transmitting light to the fingertip removably attached to the fingertip. センサケーブル205と測定器コネクタ201は図に示すようにセンサ203と一体となっている。 Sensor cable 205 and meter connector 201 is integrated with the sensor 203 as shown in FIG. 別の実施形態において、センサ203がケーブル205やコネクタ201と別体で構成されていてもよいが、公的又は私的ネットワークあるいはコンピュータシステム又は装置により、これらの間に医療装置又はその他の装置、これらの組合わせを介すなどしてこれらの間の通信を無線で好適に行うことができる。 In another embodiment, the sensor 203 may be configured separately from the cables 205 and connectors 201, but public or by private network or a computer system or apparatus, a medical device or other devices between them, and the like via any combinations thereof can be performed favorably communication between them wirelessly.

図2B、図2Cはセンサの別の実施形態を示し、センサ211(図2B)は使い捨て部分と再利用可能部分とからなり(一部使い捨て)、接着剤取付機構を使用している。 2B, 2C show another embodiment of a sensor, the sensor 211 (FIG. 2B) is composed of a disposable part and a reusable part (part disposable), using an adhesive attachment mechanism. また、センサ213は使い捨てタイプで接着剤取付機構を使用している。 The sensor 213 uses an adhesive attachment mechanism disposable. その他の実施形態において、センサを、足や耳など指以外の様々な組織部位に取り付けるよう構成してもよい。 In other embodiments, the sensor may be configured to attach to various tissue sites other than the finger and feet and ears. また、センサを、額やその他の組織表面に取り付ける反射又は透射装置として構成してもよい。 Further, the sensor may be configured as a reflection or Torui device attached to the forehead or other tissue surface. 本明細書中の開示内容から当業者であれば認知する通り、センサが患者種類や測定種類、測定器機種その他に特化させた機械的構造、接着剤又はその他のテープ構造、マジックテープ(登録商標)を巻き付ける構造あるいはこれを用いた構造を備えていてもよい。 As will be recognized by those skilled in the art from the disclosure herein, the sensor is patient type and kind of measurement, the measuring instrument model other mechanical structure with specialized adhesive or other tape structure, Velcro (Registered R) may comprise a structure or structure using the same wound.

図3は測定システム300の一実施例のブロック図を示す。 Figure 3 shows a block diagram of an embodiment of a measurement system 300. 図3に示すように、測定システム300は測定器301と、ケーブル303を介しこれと通信する非侵襲的センサ302とを備える。 As shown in FIG. 3, the measurement system 300 comprises a measuring device 301, and a noninvasive sensor 302 that communicates therewith via a cable 303. 一実施形態において、センサ302は身体組織306に光を照射する複数のエミッタ304と、組織306による減衰後の光を検知することのできる1又は複数の検知器308を有する。 In one embodiment, the sensor 302 includes a plurality of emitters 304 that irradiates light to the body tissue 306, the one or more detectors 308 can detect the light after attenuation by the tissue 306. また図3に示すように、センサ302は例えばサーミスタなどの温度センサ307を備えている。 Also as shown in FIG. 3, the sensor 302 includes a temperature sensor 307 such as a thermistor, for example. センサ302はさらに、EEPROMやEPROMなどの記憶装置308を備えている。 Sensor 302 further includes a storage device 308 such as an EEPROM or EPROM. センサ302はまた、検知器コンポジット信号導体310、温度センサ導体312、記憶装置導体314、エミッタ駆動信号導体316など、各々の部品と信号を送受信する複数の導体(導線)を備えている。 Sensor 302 also includes a detector composite signal conductors 310, the temperature sensor conductors 312, storage conductors 314, such as the emitter driving signal conductors 316, a plurality of conductors for transmitting and receiving each of the components and signal lines (conductors).

一実施形態によれば、センサ導体310、312、314、316はケーブル303を介して測定器301に信号を送信する。 According to one embodiment, the sensor conductor 310, 312, 314, 316 sends a signal to the instrument 301 via a cable 303. ここではケーブル303として開示しているが、本明細書中の開示内容から当業者であれば認知する通り、センサ306との通信には、ケーブル、ケーブル構造、公的又は私的通信ネットワークあるいはコンピュータシステム、有線又は無線通信(IEEE801.11a/b/gを含むBluetoothやWi−Fiなど)、移動通信、これらの組合わせなど、多様なものを好適に用いることができる。 Here, although disclosed as cable 303, as will be recognized by those skilled in the art from the disclosure herein, to communicate with the sensor 306, the cable, the cable structure, public or private communication network or a computer system (such as IEEE801.11a / b / g Bluetooth or Wi-Fi including) wired or wireless communication, mobile communication, etc. these combinations can be suitably used as various. さらに、通信は単線又は単一チャンネルで行っても多線又は多チャンネルで行ってもよい。 Furthermore, communication may be carried out in multi-line or multi-channel even if a single line or a single channel.

一実施形態において、温度センサ307はセンサ302とその部品、例えばエミッタ304の温度を監視する。 In one embodiment, the temperature sensor 307 monitors the temperature of the sensor 302 and its components, for example, the emitter 304. 例えば一実施形態においては、温度センサ307は充分な熱伝導性を有する熱バルク体を備えるかあるいはこれと通信し、発光装置304の基板温度をリアルタイムで概算する。 For example, in one embodiment, it communicates or that this temperature sensor 307 is provided with a heat bulk material having sufficient heat conductivity, to estimate the substrate temperature of the light emitting device 304 in real time. センサ302を身体組織306に取り付けるとセンサ302の部品の表面温度には摂氏10度又はそれ以上もの変化が見られるが、上記のように温度を概算することでこのような温度変化を好適に把握することができる。 When mounting the sensor 302 to the body tissue 306 on the surface temperature of the component of the sensor 302 changes 10 degrees or more Celsius also seen, but suitably grasp such temperature changes by estimating the temperature as described above can do. 一実施形態において、測定器101を特に敏感な組織に用いる場合には、何よりも患者の安全確保のために、温度センサ307の出力を好適に用いることができる。 In one embodiment, in the case of using a measuring device 101 to the particularly sensitive tissue, the more for the safety of the patient nothing, can be preferably used the output of the temperature sensor 307. 一実施形態においては、「多波長センサ基板」と題され、2006年3月1日に出願された米国特許出願第11/366209号に開示の通り、測定器301が温度センサ307の出力及び監視下の動作電流又は電圧を好適に用いて、センサ302の動作条件を修正するようにしてもよい。 In one embodiment, entitled "Multi-wavelength sensor substrate", as disclosed in U.S. Patent Application No. 11/366209, filed on March 1, 2006, the output and monitoring of the measuring instrument 301 Temperature sensor 307 the operating current or voltage under suitably used, may be corrected operating conditions of the sensor 302. 同出願は参照により本明細書中に組み込まれる。 The application is incorporated herein by reference.

記憶装置308は本明細書中の開示から当業者に明らかな、EPROM、EEPROM、フラッシュメモリ、これらの組合わせなど、様々な記憶装置の1又は複数を含むことができる。 Storage 308 will be apparent to those skilled in the art from the disclosure herein, EPROM, EEPROM, flash memory, etc. These combinations may contain one or more different storage devices. 記憶装置308はROMなど読取専用装置や、RAMなどの読取/書込装置や、これらの組合わせなどを含んでもよい。 Storage 308 dedicated device or reading such ROM, read / write device and the RAM, etc. may include such combinations thereof. 説明を簡単にするため本明細書中では以後、これらの組合わせを単にEPROMと称するが、本明細書中の開示内容から当業者であれば認知する通り、記憶装置308はROM、RAM、単線メモリ、これらの組合わせなどを含むことができる。 Thereafter herein for simplicity of description, referred to as a combination of these just EPROM and as perceived by those skilled in the art from the disclosure herein, storage 308 ROM, RAM, solid wire memory, can contain, such as combinations of these.

記憶装置308は、例えば、センサ302の機種又は動作情報、患者又は身体組織306の種類、購入者又は製造者情報や、照射可能な光波長数・エミッタ仕様・エミッタ駆動要件・復調データ・計算モードデータ・校正データ・スクリプトや実行可能コードなどのソフトウェア・センサ電子要素・一部又は全てのセンサ部品の寿命切れ及び交換必要性を表示するセンサ寿命データ・暗号化情報などを含むセンサ特性、測定器又はアルゴリズム更新指示又はデータなど、様々なデータ及び情報の一部又は全てを好適に保存することができる。 Storage 308, for example, model or operating information of the sensor 302, the patient or the kind of body tissue 306, purchaser or manufacturer information and, can be irradiated light wavelength number emitter Specifications emitter drive requirements, demodulated data calculation mode sensor characteristics, including data and calibration data script or executable code such as software, electronic sensor elements, some or sensor life data encryption information for displaying the lifetime exhaustion and replacement needs of all sensor parts, instrument or algorithms, such as update instruction or data, can be suitably stored some or all of the various data and information. 一実施形態において、記憶装置308はまた、エミッタ波長修正データを含んでもよい。 In one embodiment, memory device 308 may also include an emitter wavelength correction data.

好適な一実施形態においては、測定器がセンサ上の記憶装置から、次に挙げる様々な選択肢のうちの1又は複数あるいは全てのデータ及び情報を読み出す。 In one preferred embodiment, the measuring instrument from the storage device on the sensor, then reads one or more or all of the data and information among the various options mentioned. これらのデータ及び情報は例えば、センサの機種又は動作情報、患者種類、センサ購買者の種類又はID、センサ製造者情報や、照射装置の数・照射可能な光波長数・光重心に関するデータ・温度変化による照射特性変化に関するデータ・センサ温度履歴・電流又は電圧・エミッタ仕様・エミッタ駆動要件・復調データ・計算モードデータ・測定対象のパラメータ(HbCO、HbMetなど)・校正データ・スクリプトや実行可能コードなどのソフトウェア・センサ電子要素・センサが使い捨てタイプか再利用タイプか又は多点式一部再利用タイプか一部使い捨てタイプか・センサが粘着タイプ又は非粘着タイプか・センサが反射型か透写型か・センサが指、手、足、額、耳のいずれに取り付けられるタイプか・センサがステレオタイプか These data and information, for example, model or operating information of the sensor, patient type, sensor purchaser type or ID, and the sensor manufacturer information, data, temperature on the number-irradiated possible number of optical wavelengths, optical center of gravity of the irradiation device data sensor temperature history, current or voltage emitter specifications emitter drive requirements, demodulated data calculation mode data measured parameter related emission characteristic change due to the change (HbCO, etc. HbMet), calibration data script or executable code, etc. software sensor electronic components, sensors disposable or reusable type or multi-point type or part portion reuse type disposable or sensor is pressure-sensitive type or non-stick type or sensors reflective or tracings type or sensor fingers, hands, feet, forehead, type or sensor to be attached to any of the ears or stereo type 方向タイプか・一部又は全てのセンサ部品の寿命切れ及び交換必要性を表示するセンサ寿命データ・暗号化情報・キー又はキーに対応するインデックスあるいはキー機能などを含むセンサ特性、測定器又はアルゴリズム更新指示又はデータ、一部又は全てのパラメータ数式、患者、年齢、性別、投薬についての情報、精度又はアラーム設定及び感度設定に役立つその他の情報、動向履歴、アラーム履歴、センサ寿命その他である。 Sensor characteristics, including the index or key function corresponding to the direction type or-part or sensor life data encryption information key or keys to display the lifetime exhaustion and replacement needs of all sensor components, the measuring instrument or algorithm updates instructions or data, some or all of the parameters equation, patient age, gender, information about medication, and other information that will help the accuracy or alarm settings and sensitivity setting, trend history, alarm history, is a sensor life other.

図3はまた、1又は複数のホスト機器320との通信を行う1又は複数の処理基板318を備えた測定器301を示している。 Figure 3 also shows a measuring device 301 with one or more of the process substrate 318 for communicating with one or more host devices 320. 一実施形態によれば、基板318は1又は複数のプリント回路基板上に配設された処理回路を有し、前記回路基板は携帯型又はその他の測定器301に内蔵したり、様々な患者情報を測定する様々なホスト機器320に光磁気部品として配設したり、測定器と無線通信を行う別個のユニットに配設することができる。 According to one embodiment, the substrate 318 has a processing circuit disposed on one or more printed circuit board, the circuit board or incorporated in a portable or other instrument 301, various patient information it can be disposed in a separate unit or disposed as a magneto-optical component in a variety of host device 320 for measuring, the measuring device and the wireless communication performing. 図3に示すように、基板318は、検知器308からアナログ検知器コンポジット信号を受信する入力とゲインコントロール信号324を受ける入力を有する前置信号変換器322を備える。 As shown in FIG. 3, a substrate 318 is provided with a 置信 No. converter 322 before having an input for receiving an input and the gain control signal 324 for receiving the analog detector composite signal from the detector 308. 信号変換器322はアナログ/デジタル変換器326(A/D変換器326)と通信する1又は複数の出力を備える。 Signal converter 322 comprises one or more of the output to communicate with the analog / digital converter 326 (A / D converter 326).

A/D変換器326は前置信号変換器322の出力及び温度センサ307の出力と通信する入力を備える。 A / D converter 326 comprises an input that communicates with an output of the output and the temperature sensor 307 before 置信 No. converter 322. 変換器326はさらに、デジタル信号処理/信号抽出部328と通信する出力を備える。 Converter 326 further includes an output in communication with the digital signal processing / signal extraction unit 328. 処理部328は概して、A/D変換器326と通信しゲインコントロール信号324及びエミッタ駆動電流制御信号330を出力する。 Processor 328 generally outputs a gain control signal 324 and the emitter drive current control signal 330 to communicate with the A / D converter 326. 処理部328はまた記憶装置308とも通信を行う。 Processing unit 328 also performs a memory device 308 both communication. 仮想線で示すように処理部328はメモリ読取器、メモリ書込器その他を用いて記憶装置308と通信を行ってもよい。 Processor 328 as shown in phantom memory reader may communicate with storage device 308 by using other memory write unit. さらに図3に示すように処理部328はホスト機器320と通信し、測定及び算出したパラメータやその他データを、例えば画像表示する。 Further processing unit 328 as shown in Figure 3 communicates with the host device 320, the measurements and calculated parameters and other data, for example image display.

また図3に示すように、基板318は、処理部328から電流制御信号330を受信しエミッタ駆動回路334に制御情報を供給するデジタル/アナログ変換器332(D/A変換器332)を備え、制御情報を受けたエミッタ駆動回路334は導体316を介してセンサ302上の複数のエミッタ304を駆動する。 Also as shown in FIG. 3, a substrate 318 is provided with a supply control information receives the current control signal 330 from the processor 328 to the emitter driving circuit 334 a digital / analog converter 332 (D / A converter 332), the emitter driving circuit receiving the control information 334 for driving a plurality of emitters 304 on the sensor 302 via the conductor 316. 一実施形態において、エミッタ駆動回路334は予め設定された16種の波長光を照射する16のエミッタを駆動するが、回路334が駆動するエミッタの数はこれに限られない。 In one embodiment, the emitter drive circuit 334 drives the 16 emitters of irradiating a preset 16 different wavelength light, the number of emitters circuit 334 is driven is not limited thereto. 例えば回路334は2以上の波長光を照射する2以上のエミッタを駆動してもよいし、又は、8以上の波長光を照射するマトリックス配置された8以上のエミッタを駆動してもよい。 For example circuit 334 may be driven two or more emitters for projecting two or more wavelength light, or may drive eight or more emitters matrix arrangement irradiates 8 or more wavelength light. さらに、1又は複数のエミッタにより同一又はほぼ同一の波長光を照射し冗長性を与えてもよい。 It may also provide redundancy irradiated with identical or nearly identical wavelength light by one or more emitters.

一実施形態において、ホスト機器320は処理部328と通信し、処理部328が算出する生体パラメータ情報を表す信号を受信する。 In one embodiment, the host device 320 communicates with processor 328, receives a signal representative of the biometric parameter information processing unit 328 is calculated. ホスト機器320は、測定部位の組織306について算出された生体パラメータを表す兆候表示が可能な1又は複数の表示装置336を備えていることが好ましい。 The host device 320 is preferably indications indications indicating biological parameters calculated for tissue 306 of measurement site is provided with one or more display devices 336 as possible. 一実施形態において、ホスト機器320は、上記測定及び算出された1又は複数のパラメータ表示が可能な携帯式、又はその他のポータブル型のモニタ表示装置を含む様々なハウジングを好適に備えることができる。 In one embodiment, the host device 320 may suitably comprise various housing including the above measurements and calculated one or more parameters that can display portable, or other portable monitor display device. さらにまた他の実施形態においては、ホスト機器320が測定及び算出された1又は複数のパラメータの動向データを表示することができる。 Furthermore in other embodiments, may be a host device 320 for displaying the trend data of measurement and one or more parameters are calculated. さらに、本明細書中の開示内容から当業者であれば認知する通り、処理部328から得られるデータの表示方法には他にも様々な選択肢がある。 Furthermore, as will be recognized by those skilled in the art from the disclosure herein, the method of displaying data obtained from the processing unit 328 has various alternatives to other.

一実施形態において、ホスト機器320は、(良い又は悪い)所定方向に動向する1又は複数の生体パラメータが所定の安全域の上限又は下限値を越えたことを介護者に対し警告する聴覚あるいは視覚的アラームを備えており、また、上記パラメータは、介護者が表示データをどの程度信頼できるかを示す指標を含んでいてもよい。 In one embodiment, the host device 320, (good or bad) audible or visual 1 or more biological parameters trends in a predetermined direction is warned caregiver that exceeds the upper or lower limit of the predetermined safety margin alarm the equipped with, also, the parameters may include an indication whether the caregiver can how reliable the display data. さらに別の実施形態では、ホスト機器320が、例えば再利用可能品、使い捨て品、又はこれらの組合わせなど、センサ302の部品の寿命切れ又は過剰使用を判定することのできる回路を含んでいてもよい。 In yet another embodiment, the host device 320, for example, reusable products, disposable, or the like combinations thereof, also include a circuit capable of determining the life out or excessive use of parts of the sensor 302 good. さらに、例えば検知器308などの光学部品の明瞭度、不明瞭度、透明度、半透明度を判定する別の検知器を用いて、センサ部品の使用量を表示、及び/又はフォトダイオードの品質を表示するようにしても好適である。 Furthermore, for example, clarity of optical components, such as detectors 308, obscured degree, transparency, using a different detector determines translucency, display the usage of the sensor components, and / or display of the quality of the photodiode it is suitable.

本明細書中の開示内容から当業者であれば認知する通り、エミッタ304及び/又は検知器308が測定器又はセンサハウジングの内部に位置すると好適である。 As will be recognized by those skilled in the art from the disclosure herein, it is preferable that the emitter 304 and / or detector 308 is located inside the meter or sensor housing. このような実施形態では、組織部位への光の入出射は光学繊維により行われる。 In such embodiments, input and output of light to the tissue site is performed by an optical fiber. 検知器とは異なり、光学繊維の接点は組織近辺に位置させることができる。 Unlike detectors, contact of the optical fibers can be located near the tissue. 一実施形態において、生体測定器は臨床上有用な範囲でHbCOを正確に測定する。 In one embodiment, biometric instrument accurately measures the HbCO clinically useful range. この測定は非光学繊維センサにより行ってもよい。 This measurement may be performed by non-optical fiber sensor. また別の実施形態では、生体測定器が複数の、少なくとも4つの非コヒーレント光源を利用して1又は複数の上記生体パラメータを計測する。 In another embodiment, biometric devices is plural, measuring one or more of the biological parameters utilizing at least four non-coherent light source. 同様に非光学繊維センサを用いてもよい。 Likewise it may be used the non-optical fiber sensor. 場合によっては測定器が光学繊維検知器から光信号を受信することもある。 In some cases also the instrument receives an optical signal from the optical fiber detector. 光学繊維検知器は例えばMRIやコバルト放射治療その他を受けている患者の測定に有用である。 Optical fiber detectors are useful for measuring a patient undergoing MRI or cobalt radiation treatment other example. 同様に、光エミッタにより光学繊維導管を通して測定器から組織部位へ光照射することができる。 Similarly, the light emitters may be light emitted from the instrument to the tissue site through the optical fiber conduit. 光学繊維はHbCO及びHbMetの測定に特に有用である。 Optical fibers are particularly useful for measuring HbCO and HbMet. また別の実施形態では、エミッタが組織近辺に配されるレーザダイオードである。 In another embodiment, a laser diode emitters are disposed near the tissue. この場合光学繊維は用いない。 In this case the optical fiber is not used. このようなレーザダイオードを用いる場合、波長に作用する温度補償を行っても行わなくてもよい。 When using such a laser diode, it may or may not be performed temperature compensation acting on wavelength.

図4はセンサ308上の記憶装置の一実施形態を示す。 Figure 4 shows an embodiment of a storage device on the sensor 308. 記憶装置308は読取専用部401と読取/書込部403を有する。 Storage device 308 includes a dedicated section 401 read the read / write unit 403. 当業者であれば理解する通り、読取専用部と読取/書込部は同じ記憶部に設けても、物理的に別個の記憶部に設けてもよい。 As will be understood by those skilled in the art, also the read / write unit read only unit is provided in the same storage unit, it may be physically located in a separate storage unit. また、当業者であれば理解する通り、読取専用ブロック401と読取/書込ブロック403は多数の個別の物理的記憶装置から成っても、単一の記憶装置から成ってもよい。 Also, as will be understood by those skilled in the art, the read / write block 403 the read-only block 401 may consist of a number of separate physical storage devices, it may consist of a single storage device. 読取専用部401は例えばセンサ寿命測定(SLM)関数405、寿命切れまでの残存パーセント407、更新期間409、使用期限411、関数インデックス413、センサ種類その他の読取専用情報を保存する。 Only 401 reading, for example sensor lifetime measurements (SLM) function 405, the remaining percentage 407 of the lifetime exhaustion, update period 409, expiration date 411, a function index 413 stores the sensor types other read-only information.

読取/書込部403は、センサの測定システムへの接続回数415、センサの校正完了回数417、センサの測定システムへの接続時間合計419、患者の生命維持パラメータ処理にセンサが使用された時間合計421、LEDへの累積印加電流423、患者に取り付けたセンサの累積温度425、寿命切れ状態427、クリップの押圧回数429など、多数の読取/書込パラメータを保存する。 Read / write unit 403, the connection number 415 to the sensor of the measuring system, the calibration total number of completions 417, connection time total 419 to the sensor of the measuring system, the time the sensor is used in a life parameter processing patient sensor 421, the cumulative current applied 423 to the LED, the cumulative temperature 425 sensor attached to a patient, life out condition 427, such as pressing the number 429 of the clip, and stores the number of read / write parameter. 以上、所定のパラメータや情報について述べたが、当業者であれば本明細書中の開示内容から理解する通り、センサの耐用寿命判定に有用な読取専用及び読取/書込パラメータを記憶部に上述のものより多く、あるいは少なく保存してもよい。 Having described the predetermined parameters and information, described above as to understand from the disclosure herein one skilled in the art, the only and read / write parameter reading useful service life determination of the sensor in the storage unit more, or at least may be stored ones.

図5は測定器とセンサ間の読取/書込処理の一実施形態のフローチャートを示す。 Figure 5 shows a flowchart of an embodiment of a read / write processing between the measuring instrument and the sensor. ブロック501において、測定器はセンサからセンサパラメータを取得する。 In block 501, the instrument acquires sensor parameter from sensor. 例えばブロック501において、測定器は記憶装置の読取専用部401にアクセスしSLM関数405などの関数、寿命切れまでの残存パーセント407、更新期間409、使用期限411、及び/又は関数インデックス413を取得することができる。 In example block 501, the instrument acquires functions, such as SLM function 405 accesses the private portion 401 reading of the storage device, the remaining percentage 407 of the lifetime exhaustion, update period 409, expiration date 411, and / or a functional index 413 be able to. 測定器は次いでブロック503において、これらの関数を用いセンサ使用情報を追跡する。 The instrument then at block 503, tracking sensor using information using these functions. ブロック503において測定器は例えば、センサの使用時間、センサの指への接続時間、センサの開閉回数、平均温度、センサへの平均供給電流、及び、センサに課されるその他の負荷などのセンサ使用情報を追跡する。 Instrument at block 503, for example, time use of the sensor, the connection time of the sensor to the finger, opening and closing frequency of the sensor, the average temperature, the average current supplied to the sensor, and the sensor used, such as other loads imposed on the sensor track information. 測定器は次いでブロック505においてこの使用情報を定期的にセンサに書き込む。 The instrument then writes the use information periodically to the sensor at block 505. 判定を行うブロック507では、測定器はセンサから取得したパラメータ及び使用情報に基づき、センサ寿命が尽きたかどうかを判定する。 At block 507 a determination, the instrument on the basis of the acquired parameter and using information from the sensors, determines whether the sensor life is exhausted. ブロック507にてセンサ寿命がまだ尽きていないと判断された場合、ブロック503に戻り測定器はセンサ使用情報の追跡を続ける。 If the sensor life at block 507 is determined not yet exhausted, the instrument returns to block 503 keep track of sensor usage information. これに対し判定ブロック507にて測定器が、センサ寿命が尽きたと判断すると、測定器はブロック509にてセンサ寿命が尽きたことを表示する。 Instrument at decision block 507 to this, when it is determined that the sensor lifetime is exhausted, the meter indicates that the sensor life at block 509 is exhausted.

センサ使用情報は様々な方法で求めることができる。 Sensor usage information can be obtained in various ways. 例えば一実施形態においては、エミッタ寿命を判定するため、エミッタのパルス数を計測しその指標を記憶部に保存してもよい。 For example, in one embodiment, to determine the emitter life, may be stored the index measures the number of pulses of the emitter in the storage unit. 一実施形態においては、センサへの電力供給期間を求めこの指標を記憶部に保存する。 In one embodiment, obtains the power supply period to the sensor to store the index in the storage unit. 一実施形態においては、センサ及び/又はLEDへの供給電流量を測定しこの指標を記憶部に保存する。 In one embodiment, to measure the amount of current supplied to the sensor and / or LED to save the index in the storage unit. 一実施形態においては、センサの起動又は終了回数を測定しこの指標を記憶部に保存する。 In one embodiment, measuring the start or end times of the sensor to store this index in the storage unit. 一実施形態においては、センサのある測定器への接続回数を追跡しこの指標を記憶部に保存する。 In one embodiment, to track the number of times the instrument with a sensor to save the index in the storage unit. 一実施形態においては、センサの患者への取付け又は取外し回数を測定しこの指標を記憶部に保存する。 In one embodiment, measures the mounting or removal the number of times the patient sensors to save the index in the storage unit. センサの患者への取付け又は取外し回数は、プローブのオフ状態回数を検知してもよいし、又は、別個の測定器をセンサに取り付け、いつクリップが押圧・開放・取り外し・交換・取り付けられたかなどを調べることで測定することができる。 Mounting or detaching the number of sensors into a patient, may be detected in the off state number of the probe, or attached to separate measuring instrument sensor, when the clip is pressing and opening and removal, exchange, attached or the like it can be measured by looking at. 一実施形態においては、センサの平均動作温度を測定しこの指標を保存する。 In one embodiment, measures the average operating temperature of the sensor to store the index. これは例えば、上述のようにバルク体を用いて行ってもよいし、又は、各エミッタの温度又はセンサのその他部分の温度を直接測定して行ってもよい。 This example may be performed using a bulk body as described above, or may be performed by measuring the temperature of the other parts of the temperature or sensor of each emitter directly. 一実施形態においては、センサに接続された異なる種類の測定器台数を追跡しこの指標を記憶部に保存する。 In one embodiment, to track the different types of measuring instruments number connected to the sensor to save the index in the storage unit. 一実施形態においては、センサの校正回数を測定しこの指標を記憶部に保存する。 In one embodiment, it measures the calibration number of sensors to save the index in the storage unit. 一実施形態においては、センサを使用した患者人数を測定しこの指標を保存する。 In one embodiment, measures the patient number using sensors Save this indication. これは例えば、患者に関する情報を検知あるいは手入力にて保存しておき、この情報を、センサが起動・分離及び/又は再接続されたとき、又はその他重要な機会あるいは定期的に得られる新情報と比較し、センサが接続されたのが同一の患者であるか新たな患者であるかを判定することにより行うことができる。 This example, to keep patient information at detection or manually input this information, when the sensor is activated and separated and / or reconnected, or other important occasion or periodically new information obtained compared with, the sensor is connected can be performed by determining whether a new patient or the same patient. 一実施形態においては、使用者が患者に関する情報を入力するよう促され、この情報が記憶部に保存され、センサの耐用寿命判定に用いられる。 In one embodiment, be prompted for a user to enter information about the patient, this information is stored in the storage unit, used for service life determination of the sensor. 一実施形態においては、使用者がセンサの清掃及び消毒に関する情報を入力するよう促され、この指標が記憶部に保存される。 In one embodiment, be prompted for a user to enter information about cleaning and disinfection of the sensor, the index is stored in the storage unit. 以上、所定の方法による所定のパラメータの計測について述べたが、本明細書中の開示内容から当業者であれば理解する通り、センサの耐用寿命判定に有用なパラメータの計測として他にも様々な電気的又は機械的計測法が可能である。 Having described the measurement of the given parameter by a predetermined method, as will be understood by those skilled in the art from the disclosure herein, the useful life determination sensors Additional variety as the measurement of the useful parameters electrical or mechanical measuring method is possible.

測定器及び/又はセンサはセンサ使用情報に基づきセンサ寿命を決定する。 Meter and / or sensors to determine the sensor life on the basis of the sensor usage information. 一実施形態においては、測定器及び/又はセンサは、センサ記憶部から与えられる数式を用いて上述の変数からセンサ寿命を測定する。 In one embodiment, the measuring instrument and / or sensor measures the sensor lifetime from the above variables using equations given from the sensor storage unit. 一実施形態においては、上記数式は、SLM関数405など、1又は一連の関数である。 In one embodiment, the formula is like SLM function 405 is one or set of functions. 一実施形態においては、実験的又は経験的データを用い、センサ寿命判定に用いる数式を決定する。 In one embodiment, using experimental or empirical data to determine a formula for use in the sensor life determination. 一実施形態においては、損傷を受けた、及び/又は使用済みセンサを分析し、センサの耐用寿命予測に有用な数式作成のために使用情報を取得する。 In one embodiment, damaged, and / or analyze the used sensor, acquires the use information for useful formulas create the useful life prediction of the sensor.

一実施形態においては、1又は複数の数式が測定器の記憶部に保存される。 In one embodiment, one or more formulas are stored in the storage unit of the measuring instrument. そして、測定器により使用されるべき正しい1又は複数の数式を示す指標がセンサ内に保存される。 The indicator of the correct one or more equations to be used by the instrument is stored in the sensor. 測定器は、センサ上に保存されたこの指標を読み込むことで、センサの耐用寿命判定用に使用すべき1又は一連の数式を識別する。 Instrument, by reading the index stored on the sensor, identifying one or a series of formulas to be used for determining the service life of the sensor. このように、測定器の記憶部上に複数又は一連の関数を保存し、センサの記憶部には使用すべき正しい関数を示す指標のみを保存することにより、記憶容量を節約することができる。 Thus, to store a plurality or set of functions on the storage unit of the measuring device, the storage unit of the sensor by saving only index indicating the correct function to be used, it is possible to save the storage capacity.

一実施形態においては、センサ/測定器構成に基づき、加重関数又は関数平均が求められる。 In one embodiment, based on the sensor / instrument configuration, the weighting function or functions average is determined. 例えば、一実施形態において、センサ寿命関数は、使用指標の加重和である。 For example, in one embodiment, the sensor life function is a weighted sum of the use indices. 例えば一実施形態においては次のようなセンサ寿命関数が用いられる: A sensor life function: used in one embodiment for example:

ここで、関数f ijは動作条件に基づいて求められる関数であり、c はセンサ使用の指標である。 Here, a function is a function f ij obtained based on the operating conditions, c j is the index of the sensor used. 例えば、正しい関数f ijは下のような表から求めることができる: For example, correct function f ij can be determined from a table as shown below:
ここでF はセンサ種類及び/又は測定するパラメータの種類及び数を指す。 Here F i refers to the type and number of sensors types and / or measured parameters. 異なるセンサ及び異なるパラメータのそれぞれにつき別個の関数を用いて、センサの耐用寿命を決定する。 Using a separate function per each of the different sensors and different parameters, to determine the service life of the sensor. 一実施形態においては、あるセンサについての正しいF はセンサ記憶部に保存することができる。 In one embodiment, the correct F i for a certain sensor can be stored in the sensor memory unit. 一実施形態においては、1つのセンサについての全ての関数f ijがセンサ記憶部に保存される。 In one embodiment, all functions f ij for one sensor is stored in the sensor memory unit. 一実施形態においては、テーブル全体がセンサ記憶部に保存される。 In one embodiment, the entire table is stored in the sensor memory unit. は測定されたセンサパラメータから求めることができる。 c j can be determined from the measured sensor parameters. 例えば、c は、使用時間合計を計測したり、あるパラメータ中の使用時間の平均値を求めたり、使用時間を二乗するなどして求めることができる。 For example, c j is or measures the total use time, or an average value of the use time in a given parameter can be determined, for example, by squaring the use time. 従ってc は使用を表す指標と言える。 Thus c j can be said as an index representing the use. 一実施形態においては、センサの起動又は終了回数を示す正しい値c は次の数式から求めることができる。 In one embodiment, the correct value c j indicating the start or end count of the sensor can be determined from the following formula.

ここで、cは起動又は終了回数を指す。 Here, c is refers to start or end times.

一実施形態において、あるセンサの耐用寿命が尽きると、測定器又はセンサがアラームを鳴らすか、又は、センサの使用期間が終了したことを視覚的に表示する。 In one embodiment, the useful life of a sensor is exhausted, the instrument or sensor or sound an alarm or visual indication that the service life of the sensor is completed. 一実施形態においては、測定器が、センサが不良である旨の表示を行う。 In one embodiment, the meter performs a display indicating that the sensor is defective. 一実施形態においては、測定器がデータを出力しなくなる。 In one embodiment, the measuring device does not output the data. 一実施形態においては、センサが生命兆候を計測している最中にはセンサ寿命が終了したことを告げる表示は行われない。 In one embodiment, display sensor tells that the sensor life is finished while the measures the vital signs is not performed. 一実施形態においては、センサの残存寿命がパーセントで表示される。 In one embodiment, the remaining life of the sensor is displayed as a percentage. 一実施形態においては、推定残存使用期間が表示される。 In one embodiment, the estimated remaining service life is displayed. 一実施形態においては、具体的なパーセントや期間を示すことなく、センサ寿命が終末に近づいたことを表す表示が出される。 In one embodiment, without showing the specific percentage and duration, a display indicating that the sensor life is approaching the end they are issued.

図6Aと図6Bはセンサ寿命測定システムの実施形態のフローチャートを示す。 6A and 6B show a flow chart of an embodiment of a sensor lifetime measurement system. センサ寿命測定システムの一実施形態を示す図6Aでは、記憶装置を有するセンサが測定器に接続されている。 In Figure 6A illustrates one embodiment of a sensor lifetime measurement system, the sensor having a storage device is connected to the measuring instrument. ブロック601においてセンサはセンサ情報を測定器に送信する。 In block 601 the sensor transmits the sensor information to the instrument. この情報は、1又は複数の関数、使用パラメータ、寿命切れパラメータその他、センサ寿命終了の判定に有用な、センサ特有情報が含まれる。 This information may include one or more functions, use parameters, life out parameters other useful to the determination of the sensor end of life includes the sensor-specific information. ブロック603において、このセンサ情報を用いて、センサの寿命終了日決定のために用いる正しい関数を決定する。 In block 603, using the sensor information to determine the correct function used for the end of life date determination of the sensor. 過去の使用情報があればこれもこの測定工程中に使用される。 If there is past usage information which is also used during the measurement process. ブロック605において、患者測定器はセンサ使用を監視する。 In block 605, the patient measurement device monitors the sensors used. 測定器は任意でブロック607において、更新される使用情報を定期的にセンサに書き込んでもよいし、又は一実施形態において、測定サイクル終了時に一度、使用情報を書き込んでもよい。 The measuring instrument block 607 is arbitrary, and the use information is updated may be written regularly sensor, or in one embodiment, once the measurement cycle ends, may be written using information. ブロック609において、測定器はセンサ寿命パラメータ及びセンサ寿命終了時期を算出する。 In block 609, the instrument calculates the end timing sensor lifetime parameter and sensor life. その後判定ブロック611へ進み、センサ寿命が尽きたかどうかが判定される。 Proceeds to a subsequent decision block 611, whether the sensor life is exhausted are determined. センサ寿命が尽きた場合は、ブロック613に進み、センサ寿命が尽きたことが表示される。 If the sensor lifetime is exhausted, the flow proceeds to block 613, it is displayed the sensor life is exhausted. センサ寿命が尽きていないと判定ブロック611で判断した場合は、ブロック605に戻り、センサ使用が監視される。 If the sensor life is determined by the decision block 611 is not exhausted, the process returns to block 605, the sensor used is monitored.

図6Bは、センサ寿命が測定器上ではなくセンサ上で算出されるフローチャートを示す。 Figure 6B shows a flow chart which is calculated on the sensor rather than on sensor life instrument. ブロック671では患者測定器がセンサ使用を監視する。 Block 671 in the patient meter monitors the occupancy sensor. この使用情報はブロック673でセンサに送られここに記録される。 This usage information is recorded here sent to the sensor at block 673. ブロック675でセンサはセンサ寿命終了時期を算出する。 Sensor at block 675 calculates the end timing sensor life. その後判定ブロック677へ進む。 Then proceeds to decision block 677. 判定ブロック677にて、センサ寿命が尽きた場合は、ブロック679に進み、センサが寿命切れ指標を測定器に送信し測定器がブロック681にてセンサの寿命切れを表示する。 At decision block 677, if the sensor lifetime is exhausted, the flow proceeds to block 679, the sensor transmits the lifetime exhaustion indicators measuring instrument measuring instrument displays the lifetime exhaustion sensor at block 681. これに対しブロック671にてセンサ寿命が尽きていない場合は、ブロック671に戻り、センサ使用が監視される。 If the contrary is not exhausted sensor life at block 671 returns to block 671, the sensor used is monitored.

図7はセンサ寿命測定システムの一実施形態を示すフローチャートである。 Figure 7 is a flow chart illustrating one embodiment of a sensor lifetime measurement system. 患者を測定する工程中に情報がEPROM上に書き込まれる。 Information in the process of measuring the patient is written on EPROM. EPROMの情報保有量には限りがあるため、ある時点でEPROMは残量ゼロになる。 Since the information holding amount of the EPROM is limited, EPROM becomes remaining zero at some point. EPROMが残量ゼロになると、センサは交換する必要がある。 When EPROM is remaining zero, the sensor must be replaced. 従ってEPROMが残量ゼロであるという信号はセンサの寿命終了を表す。 Thus the signal of EPROM is remaining zero represents the end of life of the sensor. このようにセンサ寿命を推定するためにEPROMの記憶容量を選択することができる。 Thus it is possible to select the memory capacity of the EPROM to estimate the sensor life. さらに、測定器がセンサに一定間隔で書き込み、EPROMの記憶部が予測可能な時期に残量ゼロとなるようプログラムしてもよい。 Moreover, instrument writing at regular intervals to the sensor, the storage unit of the EPROM may be programmed to be a remaining amount zero time predictable. EPROMが残量ゼロになると測定器はセンサの交換が必要であることを知らせる聴覚的及び/又は視覚的表示を行う。 EPROM is an instrument made on the remaining amount zero performs an audible and / or visual indication for informing that it is a need to replace the sensor.

図7において、患者測定システムはブロック700においてセンサのEPROMに書き込むかどうかを判定する。 7, the patient measurement system determines whether to write the EPROM of the sensor at block 700. ブロック700にて情報をEPROMに書き込まない場合は引き続きブロック700の工程を繰り返す。 If you are still written at block 700 the information in the EPROM repeating the steps of block 700. ブロック700にて情報をEPROMに書き込む場合はブロック701に進み、EPROMが残量ゼロ(記憶可能容量ゼロ)かどうかを判定する。 When writing at block 700 the information in the EPROM proceeds to block 701 to determine whether the EPROM remaining zero (storage capacity zero). EPROMが残量ゼロの場合、ブロック703に進み情報をEPROMに書き込む。 EPROM is the case of the remaining zero, write the information proceeds to block 703 in EPROM. 情報が書き込まれると、ブロック700に戻り、次に情報がEPROMに書き込まれるのを待機する。 When information is written, the process returns to block 700, then information is waiting to be written in EPROM. ブロック701においてEPROMが残量ゼロであると判断されると、ブロック703に進み、センサの交換が必要である旨の表示がユーザに対して出される。 When EPROM in block 701 is determined to be the remaining amount zero, the flow proceeds to block 703, it displays that replacement of the sensor is needed is issued to the user.

一実施形態において、センサは修復し再利用することができる。 In one embodiment, the sensor can be reused and repair. 例えば、使用された記憶部が消去可能な記憶モジュールであれば、センサ記憶部を修復工程中に消去して、センサ全体が再び使用できるようにしてもよい。 For example, if the storage module capable erased storage unit used erases the sensor storage unit during the repair process, the entire sensor may be able to use again. 一実施形態において、記憶部の一部又は全てが消去される度に、記憶部が消去された数を示す指標が記憶装置に保存される。 In one embodiment, each time a part or all of the storage unit is erased, the index indicating the number of storage portion has been erased is stored in the storage device. このようにして、特定のセンサの修復回数を示す指標を保存することができる。 In this way, it is possible to store an indication that repair times for a specific sensor. 書込専用メモリを使用している場合は、センサの幾つかの部位を回収し再利用することができるが、使用済のメモリモジュールは新しいものに交換される。 When using a write-only memory, although some parts of the sensor can be reused collected memory module already used is exchanged with a new one. 一実施形態においては、センサ記憶部が残量ゼロになるとセンサは廃棄される。 In one embodiment, the sensor when the sensor storage unit is remaining zero are discarded.

一実施形態において、使用済みセンサの様々な部位を回収し再利用することができる。 In one embodiment, it can be reused by recovering the various sites of the used sensor. 一実施形態において、センサは上述のような様々な使用情報を追跡する。 In one embodiment, the sensor tracks the various usage information as described above. このようなセンサ記憶部を調べ、記憶部に保存されたこの使用情報に基づき、使用済みセンサのどの部位が回収可能かを知ることができる。 Examining such a sensor storage unit, based on the use information stored in the storage unit, can be any site of the used sensor know recoverable. 例えば一実施形態においては、クリップの押圧回数を示す指標が記憶部に保存される。 For example, in one embodiment, an index indicating the number of operations of pressing the clips are stored in the storage unit. 修理者はこの使用情報を参照し、機械的クリップを回収し修復済みセンサに使用できるかどうかを判断することができる。 Repairer can determine whether this use by referring to the information, can be used in repaired sensor to recover the mechanical clip. 例えばLED、ケーブル、検知器、記憶部その他のセンサ部品など、センサのその他の局面についても同じ原理(principals)を適用できることは無論である。 For example LED, cable, detectors, such as the storage unit other sensors components, it is of course can also apply the same principle (principals like) for other aspects of the sensor.

以上、本発明の好ましい実施形態につき説明したが、その他の実施形態も可能であることは本明細書中の開示内容から通常の当業者にとっては明らかであろう。 While there has been explained a preferred embodiment of the present invention, it will be apparent to those of ordinary skill in the art from the disclosure herein are possible other embodiments. 例えば本明細書中ではパルス酸素濃度センサについて説明したが、本発明の発想は例えば心電図センサ、血圧センサその他の生体センサなど他のセンサにも適用することができる。 For example, herein have been described pulse oximetry sensor, the idea of ​​the present invention can be applied to other sensors such as electrocardiogram sensor, a blood pressure sensor other biological sensor, for example. さらに本開示は、例えばセンサを生体測定器に接続するケーブルなど、センサ以外の生体測定器取付機構にも同等に適用可能である。 The present disclosure is, for example a sensor such as a cable to connect to a living body measuring device, it is equally applicable to a living body measuring device attachment mechanism other than the sensor. さらに、その他の組合わせ、省略、代用、変更も本明細書中の開示内容から当業者にとっては明らかであろう。 Additionally, other combinations, omissions, substitutions, changes will be apparent to those skilled in the art from the disclosure herein. 以上に説明した本発明の様々な局面や特徴は個別に、又は組み合わせて、あるいはそれぞれを入れ替えて実行することができ、これらの様々な局面や特徴の多岐に渡る組合せは全て本発明の範囲内と考えられる。 Individually various aspects and features of the present invention described above, or in combination, or may be performed by replacing, respectively, the range of all combinations a wide range of these various aspects and features the invention it is conceivable that. さらにまた、上述のシステムは上に挙げた好ましい実施形態中の全てのモジュールや機能を含んでいなくてもよい。 Furthermore, the system described above may not include all of the modules and functions in the preferred embodiments listed above. 従って、本発明は好ましい実施形態の表現により制限されるべきものでなく、添付の特許請求の範囲により定義されるべきものである。 Accordingly, the invention is not to be limited by the representation of the preferred embodiment, but should be defined by the appended claims.

Claims (40)

  1. 少なくとも2つの波長の光を組織を通して照射するよう構成された第1及び第2のエミッタと、 First and second emitters light of at least two wavelengths is configured to irradiate through the tissue,
    組織を通した光を感知し、感知光を表す信号を生成するよう構成された検知器と、 Sensing the light through the tissue, and configured detector to generate a signal representative of the sensed light,
    センサ使用情報の指標及びセンサの耐用寿命判定に用いられる関数の指標を保存するよう構成された記憶装置と、 A storage device configured to store an indication of the function used for the service life determination of indicators and sensors of the sensor usage information,
    少なくとも前記信号と前記記憶装置に保存された情報とを患者測定器に対し送受信するよう構成された通信システムとを備え、センサの使用情報を保存するよう構成された再利用可能な非侵襲的生体センサ。 And at least information stored said signal and to said storage device and a communication system configured to transmit and receive the patient meter, reusable non-invasive living body configured to store use information of the sensor sensor.
  2. 前記記憶装置が読取専用部と読取/書込部を備える請求項1に記載のセンサ。 The sensor of claim 1 comprising the storage device is read-only section and the read / write unit.
  3. 前記関数の指標が前記読取専用部に保存され、前記センサ使用情報の指標が前記読取/書込部に保存される請求項2に記載のセンサ。 The sensor of claim 2 in which the index of the function is stored in the read-only portion, the index of the sensor usage information is stored in the read / write unit.
  4. 前記記憶装置が複数の記憶装置から構成される請求項1に記載のセンサ。 A sensor according to configured claim 1 wherein the memory device from a plurality of storage devices.
  5. 前記センサ使用情報の指標が、前記センサの年数、前記センサの使用時間、前記センサへの供給電流、前記センサの温度、前記センサの押圧回数、前記センサの校正回数、前記センサの起動回数のうち1又は複数の指標を含む請求項1に記載のセンサ。 Indication of the sensor usage information, life of the sensor, time use of the sensor, the supply current to the sensor, the temperature of the sensor, pressing the number of the sensor, calibrating the number of the sensors, of the number of activations of the sensor a sensor according to claim 1 comprising one or more indicators.
  6. 前記測定器が使用情報を追跡し、前記使用情報の指標を前記センサに送信し、この指標が前記記憶装置に保存される請求項5に記載のセンサ。 The instrument tracks the usage information, and sends an indication of the usage information to the sensor, sensor of claim 5, the index is stored in the storage device.
  7. 記憶装置を備えた生体センサを用いて生体情報を取得し、センサの使用を監視し、前記記憶装置にセンサの使用を表す指標を保存し、前記使用指標及び複数の数学関数から選択される1又は複数の数学関数を用いて、前記センサの耐用寿命がいつ尽きたかを判定する、記憶装置を備えた生体センサの耐用寿命判定方法。 Acquires biometric information using the biometric sensor with a storage device, to monitor the use of sensors, to store the index representing the use of sensors in the storage device, it is selected from the used indicator and a plurality of mathematical functions 1 or using a mathematical function, determines the service life of the sensor is always exhausted, the service life judgment method of a biological sensor with a storage device.
  8. 前記複数の数学関数が患者測定器に保存されている請求項7に記載の方法。 The method of claim 7, wherein the plurality of mathematical functions are stored in the patient meter.
  9. 前記センサを用いて前記1又は複数の数学関数を選択する請求項7に記載の方法。 The method of claim 7 for selecting the one or more mathematical functions using said sensor.
  10. 前記数学関数が使用データから得られる請求項9に記載の方法。 The method of claim 9, wherein the mathematical function is obtained from the usage data.
  11. 少なくとも1つの使用指標を用いて前記1又は複数の数学関数を選択する請求項7に記載の方法。 The method of claim 7 for selecting the one or more mathematical functions using at least one usage indicator.
  12. 1又は複数の数学関数が2以上の数学関数を含む請求項7に記載の方法。 The method of claim 71 or more mathematical functions that include two or more mathematical functions.
  13. 前記センサの使用を表す指標が、前記センサの年数、前記センサの使用時間、前記センサへの供給電流、前記センサの温度、前記センサの押圧回数、前記センサの校正回数、前記センサの起動回数のうち1又は複数の指標を含む請求項7に記載の方法。 Index representing the use of the sensor, life of the sensor, time use of the sensor, the supply current to the sensor, the temperature of the sensor, pressing the number of the sensor, calibrating the number of the sensor, the number of activations of the sensor the method of claim 7 comprising including one or more indicators.
  14. 前記センサの使用を監視する工程を患者測定器が行う請求項13に記載の方法。 The method of claim 13 the step of monitoring the use of the sensor performed by the patient meter.
  15. 前記センサの使用を監視する工程を前記センサが行う請求項13に記載の方法。 The method of claim 13 the step of monitoring the use of the sensor is the sensor performed.
  16. 前記数学関数が前記センサ記憶部に保存されている請求項7に記載の方法。 The method of claim 7, wherein the mathematical function is stored in the sensor memory unit.
  17. 前記数学関数の指標が前記センサ記憶部に保存されている請求項7に記載の方法。 The method of claim 7, indication of the mathematical function is stored in the sensor memory unit.
  18. 前記使用データが、使用済みセンサから得られる請求項10に記載の方法。 Said usage data, The method of claim 10 obtained from used sensors.
  19. 使用済みセンサが患者に対して使用されたセンサである請求項18に記載の方法。 The method of claim 18 used sensor is a sensor that is used for a patient.
  20. 前記生体センサが血中酸素センサ、血圧センサ、心電図センサのうち1又は複数である請求項7に記載の方法。 The biometric sensor is an oxygen sensor in the blood, a blood pressure sensor, the method according to claim 7, which is 1 or more of the electrocardiogram sensor.
  21. 前記センサの少なくとも一部が再利用可能かどうかを判定する工程をさらに含む請求項7に記載の方法。 The method of claim 7 further comprising the step of determining whether at least a portion of the sensor can be reused.
  22. 前記センサの前記少なくとも一部を再利用する工程をさらに含む請求項21に記載の方法。 The method of claim 21, further comprising the step of reusing at least a portion of the sensor.
  23. 再利用工程が、前記センサの前記少なくとも一部を含む修復済みセンサを形成する工程を含む請求項22に記載の方法。 Recycling step The method of claim 22 including the step of forming the repaired sensor comprising at least a portion of the sensor.
  24. 前記センサの使用度合を判定するため使用情報を解析する工程をさらに含む請求項21に記載の方法。 The method of claim 21, further comprising the step of analyzing the usage information to determine the use degree of the sensor.
  25. 前記修復済みセンサ上に再利用情報を保存する工程をさらに含む請求項23に記載の方法。 The method of claim 23, further comprising the step of storing the re-use information on the repaired sensor.
  26. 発光素子から光を射出し、前記発光素子から出射して組織により減衰された後の光を検知し、センサ記憶モジュールに情報を保存し、前記センサ記憶モジュールが残量ゼロになる時点を判定し、前記センサ記憶モジュールが残量ゼロであると判定されたとき前記センサを交換する必要があることを表示する、生体センサの交換時期表示方法。 The light emitted from the light emitting element, said emitted from the light emitting element to detect light after being attenuated by the tissue, and save the information in the sensor memory module to determine when the sensor memory module is remaining zero to indicate that it is necessary to replace the sensor when the sensor memory module is determined to be the remaining amount zero, replacement time display method of a biological sensor.
  27. 所定の時間間隔で情報を保存する工程をさらに含む請求項26に記載の方法。 The method of claim 26, further comprising the step of storing the information at a predetermined time interval.
  28. 情報が使用情報を含む請求項27に記載の方法。 The method of claim 27 information including usage information.
  29. 患者の生体情報を示す出力信号を取得するためのシステムと、 And system for obtaining an output signal indicative of the biological information of the patient,
    センサ使用情報の指標を保存するよう構成された記憶装置と、 A storage device configured to store an indication of sensor usage information,
    少なくとも前記出力信号と前記記憶装置に保存された前記センサ使用情報とを患者測定器に対し送受信するよう構成された通信システムとを備える、情報を保存するよう構成された非侵襲的生体センサ。 Non-invasive biometric sensor configured to at least the sensor using information stored said output signal and to said storage device and a communication system configured to transmit and receive the patient meter stores information.
  30. 前記記憶装置が読取専用部と読取/書込部を備える請求項29に記載のセンサ。 The sensor of claim 29 comprising the storage device is read-only section and the read / write unit.
  31. 前記記憶装置がセンサ使用情報の少なくとも2つの異なる種類の指標を保存するよう構成されている請求項29に記載のセンサ。 The sensor of claim 29, wherein the storage device is configured to store at least two different types of indicators of the sensor usage information.
  32. 前記記憶装置がさらに前記センサの耐用寿命判定に用いられる関数の指標を保存するよう構成されている請求項29に記載のセンサ。 The sensor of claim 29 that is configured to store an indication of the function used for the service life determination of the storage device is further the sensor.
  33. 前記センサ使用情報が、前記センサの年数、前記センサの使用時間、前記センサへの供給電流、前記センサの温度、前記センサの押圧回数、前記センサの校正回数、前記センサの初期起動回数のうち1又は複数の指標を含む請求項29に記載のセンサ。 The sensor usage information, life of the sensor, time use of the sensor, the supply current to the sensor, the temperature of the sensor, pressing the number of the sensor, calibrating the number of the sensor, one of the initial number of activations of the sensor or sensor of claim 29 including a plurality of indicators.
  34. 前記測定器がセンサ使用を追跡し、前記センサ使用情報の指標を前記憶装置に送信して、この指標が保存される請求項33に記載のセンサ。 The sensor of claim 33 wherein the instrument tracks the use sensor, and transmits an indication of the sensor used information before storage, this index is stored.
  35. 患者の少なくとも1つの生体パラメータ指標を測定するよう構成された生体センサと通信する患者生体測定器であって、 A patient biometric device in communication with the biometric sensor configured to measure at least one biological parameter indicative of a patient who,
    センサの使用量を測定する手段と、 It means for measuring usage of the sensor,
    前記使用量の指標をセンサに送信して保存する手段とを備える患者生体測定器。 Patients biometric device and means for storing and transmitting an indication of the usage sensor.
  36. 前記センサの第1の種類と第2の種類の使用量を測定する手段をさらに備える請求項35に記載の患者生体測定器。 The first type and the patient biometric device of claim 35, further comprising means for measuring the amount of second type of the sensor.
  37. センサに保存される関数を取得する手段と、 It means for obtaining the function that is stored in the sensor,
    前記関数を用いて前記センサの使用を表す指標を決定する手段とをさらに備える請求項35に記載の患者生体測定器。 Patients biometric device of claim 35, further comprising means for determining the index representing the use of the sensor by using the function.
  38. 患者の生体パラメータの指標を測定するよう構成された生体センサを備えた患者測定システムであって、前記生体センサが記憶部を備え、 A patient measurement system comprising a biometric sensor configured to measure an indication of the biological parameters of the patient, the biometric sensor comprises a storage unit,
    前記患者の前記生体パラメータ指標を受信するよう構成された生体測定器を備え、前記生体測定器はさらに前記生体センサの使用を表す使用情報を測定するよう構成され、 Comprises a biometric device configured to receive the biological parameter indicator of the patient, the biometric device is configured to further measure the usage information indicating the use of the biometric sensor,
    前記記憶部生体測定器がセンサに使用情報を送信し、前記使用情報が前記センサに保存される患者測定システム。 Patients measurement system the storage unit biometric device transmits the use information to the sensor, the use information is stored in said sensor.
  39. 前記記憶部が、前記センサの耐用寿命を判定するため前記生体測定器が使用する関数を保存するよう構成されている請求項38に記載の患者測定システム。 The storage unit is, a patient measurement system of claim 38 that is configured to store a function that the biometric device is used for determining the service life of the sensor.
  40. 前記生体センサがさらに、前記センサの使用を表す指標を提供するため測定器により用いられる関数を保存し、かつこの関数を測定器に対し送信するよう構成されている請求項39に記載の患者測定システム。 The biosensor further stores a function used by the meter to provide an indication representing the use of the sensor, and patient measurement according to claim 39 that is configured to transmit the function to the measuring instrument system.
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